flexfax: Re: Problems receiving faxes

[Matthias Schönfeld <sfd@lycosmail.com>]

One year later ...

Hi All!

SINCE having problems receiving faxes with my Creatix LC 144 VFI with
proper
status at the sender I searched the flexfax-mailing-archive.

Here I found an one year old thread covering my problem (inserted at the
end of this message), but no solution. Maybe I searched not hard enough.

Tracking down the problem (comparing the hylafax communication with
those of other fax-systems) it seems to be a problem with the
data-compression-format (using 2-D modified read - DF=1).

Setting the faxmodem capabilities to be only capable of using 1-D
modified Huffman - DF=0 solves the
problem for me.

STEPS that solves my problem (living without 2-D modified read):

1. Check the modem capabilities
(Logfile output or by entering the AT-Command in a terminal session)
AT+FDCC=?
Output for my Modem:
(0,1),(0-5),(0-2),(0-2),(0,1),0,0,(0-7)
                          ^
                          |

                         DF-Capabilities
  
2. Take this string and modify DF to only be capable of 1-D modified
Huffmann:

(0,1),(0-5),(0-2),(0-2),0,0,0,(0-7)

3. Configuration parameters - modify the config.<device>:

Class2DCCQueryCmd: !(0,1),(0-5),(0-2),(0-2),0,0,0,(0-7)

Of course the other parameters has to be set properly for the faxmodem.

As a result (after new parameter is active) the log no longer say

Dec 08 12:41:41.12: [27662]: REMOTE wants 2-D MR

the session just uses 1-D Huffman.

The formerly error-Status (page bad, retain requested)

Dec 08 12:41:47.56: [27662]: --> [17:+FPTS: 2,2219,0,0]

changed to page good:

[17:+FPTS: 1,2219,0,0]


May this help everybody who's searching for a solution for the same
problem - and may it just by increasing the redundancy.

Bye

Matthias


 

Old postings:
>To: flexfax@sgi.com 
>     Subject: flexfax: Problems receiving faxes 
>     From: Andreas Mock <AMock@osram.com> 
>     Reply-To: AMock@osram.com 
>     Date: Tue, 08 Dec 1998 14:07:48 +0100 

>To: flexfax@sgi.com 
>     Subject: Re: flexfax: Problems receiving faxes 
>     From: Philipp Steinkrueger <philipp@oberberg-online.de> 
>     Date: Tue, 08 Dec 1998 22:42:39 +0100 



Andreas Mock wrote:

> Hallo together!
>
> I just installed HylaFAX v4.0pl2-12 under SuSE-Linux 5.3
> Kernel 2.0.34.
>
> A Creatix SG2834 Turbo is attached to /dev/cua1.
> It is detected as ROCKWELL AC/V34/V1.510-V34_DS
>
> The whole installation went through straight forward.
>
> Now I can send faxes without problems and can
> receive faxes. If faxgetty receives a fax, the
> log seems normal, but the contrahent who sends the
> fax is always claiming about a mistake. One fax I
> tried said that there was an incorrect acknowledgement
> of the fax-message. 
> The fax document I received is complete and I can
> convert it to different formats.
> I really don't know what is the reason for all sender
> faxes claiming about an error.
>  
> Attached is a session log of receiving a fax.
>
>Thank you in advance
>Andreas Mock

Old log from Andreas Mock for reference:

Dec 08 12:41:25.14: [27662]: SESSION BEGIN 00000040 49732412446
Dec 08 12:41:25.14: [27662]: <-- [4:ATA\r]
Dec 08 12:41:33.67: [27662]: --> [5:+FCON]
Dec 08 12:41:33.67: [27662]: MODEM set baud rate: 19200 baud (flow
control uncha
Dec 08 12:41:33.67: [27662]: MODEM set baud rate: 19200 baud, input flow
XON/XOF
Dec 08 12:41:33.67: [27662]: ANSWER: FAX CONNECTION
Dec 08 12:41:33.67: [27662]: MODEM input buffering enabled
Dec 08 12:41:33.67: [27662]: RECV FAX: begin
Dec 08 12:41:35.28: [27662]: --> [29:+FTSI: "     +49 89 62133449"]
Dec 08 12:41:35.28: [27662]: REMOTE TSI "+49 89 62133449"
Dec 08 12:41:35.58: [27662]: --> [22:+FDCS: 0,5,0,2,1,0,0,1]
Dec 08 12:41:35.58: [27662]: REMOTE wants 14400 bit/s
Dec 08 12:41:35.58: [27662]: REMOTE wants page width 1728 pixels in 215
mm
Dec 08 12:41:35.58: [27662]: REMOTE wants unlimited page length
Dec 08 12:41:35.58: [27662]: REMOTE wants 3.85 line/mm
Dec 08 12:41:35.58: [27662]: REMOTE wants 2-D MR
Dec 08 12:41:35.69: [27662]: --> [2:OK]
Dec 08 12:41:35.69: [27662]: <-- [7:AT+FDR\r]
Dec 08 12:41:38.59: [27662]: --> [5:+FCFR]
Dec 08 12:41:41.12: [27662]: --> [22:+FDCS: 0,5,0,2,1,0,0,1]
Dec 08 12:41:41.12: [27662]: REMOTE wants 14400 bit/s
Dec 08 12:41:41.12: [27662]: REMOTE wants page width 1728 pixels in 215
mm
Dec 08 12:41:41.12: [27662]: REMOTE wants unlimited page
length              
Dec 08 12:41:41.12: [27662]: REMOTE wants 3.85 line/mm
Dec 08 12:41:41.12: [27662]: REMOTE wants 2-D MR
Dec 08 12:41:41.12: [27662]: --> [7:CONNECT]
Dec 08 12:41:41.12: [27662]: RECV: begin page
Dec 08 12:41:41.12: [27662]: MODEM set XON/XOFF/FLUSH: input ignored,
output gen
Dec 08 12:41:41.12: [27662]: RECV: send trigger 022
Dec 08 12:41:41.12: [27662]: <-- data [1]
Dec 08 12:41:47.56: [27662]: RECV: 1118 total lines, 0 bad lines, 0
consecutive
Dec 08 12:41:47.56: [27662]: MODEM set XON/XOFF/DRAIN: input
interpreted, output
Dec 08 12:41:47.56: [27662]: --> [17:+FPTS: 2,2219,0,0]
Dec 08 12:41:48.73: [27662]: --> [7:+FET: 2]
Dec 08 12:41:48.73: [27662]: RECV recv EOP (no more pages or documents)
Dec 08 12:41:48.84: [27662]: --> [2:OK]
Dec 08 12:41:48.86: [27662]: RECV send MCF (message confirmation)
Dec 08 12:41:48.86: [27662]: RECV FAX (00000040): from +49 89 62133449,
page 1 i
Dec 08 12:41:48.87: [27662]: RECV FAX (00000040): recvq/fax00018.tif
from +49 89
Dec 08 12:41:48.92: [27662]: <-- [7:AT+FDR\r]
Dec 08 12:41:52.15: [27662]: --> [8:+FHNG: 0]
Dec 08 12:41:52.15: [27662]: REMOTE HANGUP: Normal and proper end of
connection
Dec 08 12:41:52.15: [27662]: RECV FAX: bin/faxrcvd "recvq/fax00018.tif"
"cua1" "
Dec 08 12:41:53.94: [27662]: RECV FAX: end
Dec 08 12:41:53.94: [27662]: SESSION END